2013 Flashcards

0
Q

Why are new DFDs and ERD created during design stage?

A

Diagrams in analysis represent current system. Design stage diagrams are logical designs of replacement system under development

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1
Q

Resources considered in the Project Plan

A

Time
Personnel
Budget
Hardware/Software

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2
Q

Features of a user guide

A

Contents page
Description of each feature of the system
Labelled screen shots showing the layout and position of screen objects

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3
Q

Purpose of a feasibility study

A

Used to investigate development costs and potential benefits. Determines if proposed project is viable

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4
Q

Aspects of feasibility report

A

Economic
Technical
Legal
Time

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5
Q

Reason why RAD tools may lead to reduced costs

A

Purchase may cost less than build costs

Reduced development time will lead to reduction in staff costs

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6
Q

Reason why RAD tools may lead to less efficient code

A

Code isn’t hand written and often includes unnecessary overheads

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7
Q

Describe Pilot conversion

A

New system is tried out in one branch for a period of time before introducing it to remaining branches

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8
Q

Describe Phased conversion

A

One or two components of new system are introduced before gradually introducing other components

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9
Q

Describe Direct conversion

A

Immediate upgrade meaning no loss of business time

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10
Q

Why is Adaptive maintenance required

A

Upgrade is required to ensure that existing system is compatible with changes to OS or browser software

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11
Q

Why is Perfective maintenance required

A

Upgrade is required to add new functionality to the existing system

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12
Q

Agent or agent-based interface

A

Intelligent feature that finds or tags similar faces in other photographs

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13
Q

Technological differences between laptop/desktop and mobile

A

Screen size
Screen resolution
RAM space
Data transmission/reception rates

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14
Q

Systematic testing is needed to ensure that:

A

The system being developed is free from errors.

Results of testing are recorded.

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15
Q

Benefits of having the help option shown as Text

A

Simple to implement

No copyright implications

16
Q

Benefits of having the help option shown as a Graphic

A

More universal and a wider range of users understand them

17
Q

Techniques used to change language on a web page

A

Machine translation

18
Q

Natural Language Querying (Intelligent Interface)

A

A facility that allows users to search for information by entering their own wording in the search box

19
Q

Disadvantages of Speech Driven Software over keying in text

A

Not 100% accurate
Difficult to use in noisy surroundings
Some accents may not be recognised

20
Q

Processes carried out during Envision stage of LUCID methodology

A

Identifying user groups
Developing a share vision
Identifying technical, schedule, resource and environmental constraints
Establishing a project plan & usability goals

21
Q

Qualitative techniques

A

Thinking aloud protocol
Question-asking protocol
Co-discovery method
Eye-tracking

22
Q

Stages of LUCID methodology

A

Envision, Discovery,
Design Foundation,
Design Detail,
Build, Release

23
Q

Describe Thinking Aloud Protocol

A

Whilst performing a task, the participant must speak their thoughts/feelings/opinions aloud. The tester records all comments.

24
Q

Describe Question-asking Protocol

A

Whilst the participant is doing the task, the tester asks the questions and records the replies.

25
Q

A questionnaire is:

A

Sent out out to users, who complete it themselves by answering all the questions, then return it to the sender

26
Q

A survey is:

A

Completed during a one-to-one interview with the user. The researcher asks the questions and fills in the user’s responses. Either face-to-face or phone

27
Q

Data gathered to measure user error rates:

A

Numbers of errors made carrying out a task specified by the development team.
Type of errors made when carrying out a specified task.